A review paper on mechanical properties of flexural and impact test on textile reinforced engineered cementitious composites

Kalaimathi,; Thangaraj, Ravi Prakash; Shanmugam, Balaji

doi:10.1016/j.matpr.2021.09.443

Cited by 6 publications

(2 citation statements)

References 73 publications

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“…The public sector as a whole has a rich history of awarding a contract to the lowest bidder. A low-bid approach, on the other hand, encourages contractors to use cost-cutting tactics rather than quality-improvement measures, making it likely that the contract will be awarded to the best-performing contractors who can provide the best goods [15,16]. As a result, public shareholders are increasingly seeking methods to include non-price aspects into the procurement process, both qualitative and quantitative, to motivate construction companies to not only enhance their productivity during work but also to add value to the finished items [17,18].…”

Section: Introductionmentioning

confidence: 99%

Analyzing key success factors in public-private partnership BOT projects: an empirical study on financing influences, insights, and analysis in construction management

Krishnaraj,

Subbaiyan,

Viswanathan

et al. 2024

Matéria (Rio J.)

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The study encompasses various infrastructural amenities such as railways, roads, ports, bridges, tunnels, power plants, hospitals, municipal buildings, and other public-use facilities, which are essential for every country's economic growth. Recognizing the challenges faced by governments in independently providing all infrastructure components, Public Private Partnerships [PPPs] have emerged as a cooperative approach between the public and private sectors. This paper explores the risks, delays, key success factors, contractor selection, and best value selection models in construction project management. In addition, the paper emphasizes the challenges that governments need to address in order to ensure the efficient functioning of the BOT (Built Operate Transfer) network. The challenges in establishing an efficient BOT network are highlighted, and a decision-support system using the .Net framework is developed to aid in the prequalification and rating of BOT marketers. The purpose of this system is to provide the best value to the public procurer by employing regression analysis to rate bidders/applicants and utilizing a composite programming method based on relative weighting.

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Section: Introductionmentioning

confidence: 99%

Analyzing key success factors in public-private partnership BOT projects: an empirical study on financing influences, insights, and analysis in construction management

Krishnaraj,

Subbaiyan,

Viswanathan

et al. 2024

Matéria (Rio J.)

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“…Zhu et al [65] presented that carbon grids can dominate the tensile behavior of ECC and improve its crack resistance. Kalaimathi et al [66,67] found that the inclusion of textile fibers provides much more performance in tensile, toughness, flexural, energy absorption capacity, and ductility in ECC composites.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Dynamic Tensile Behaviors of Engineered Cementitious Composites Reinforced with Steel Grid and Fibers

Wang

et al. 2021

Materials

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Engineered cementitious composites (ECC) used as runway pavement material may suffer different strain rate loads such as aircraft taxiing, earthquakes, crash impacts, or blasts. In this paper, the dynamic tensile behaviors of the steel grid-polyvinyl alcohol (PVA) fiber and KEVLAR fiber-reinforced ECC were investigated by dynamic tensile tests at medium strain rates. The mixture was designed with different volume fractions of fibers and layer numbers of steel grids to explore the reinforcement effectiveness on the dynamic performance of the ECC. The volume fractions of these two types of fibers were 0%, 0.5%, 1%, 1.5%, and 2% of the ECC matrix, respectively. The layer numbers of the steel grid were 0, 1, and 2. The dynamic tensile behaviors of the PVA fiber and the KEVLAR fiber-reinforced ECC were also compared. The experimental results indicate that under dynamic tensile loads, the PVA-ECC reveals a ductile and multi-cracking failure behavior, and the KEVLAR-ECC displays a brittle failure behavior. The addition of the PVA fiber and the KEVLAR fiber can improve the tensile peak stress of the ECC matrix. For the specimens A0.5, A1, A1.5, and A2.0, the peak stress increases by 84.3%, 149.4%, 209.6%, and 237.3%, respectively, compared to the matrix specimen. For the specimens K0.5, K1, K1.5, and K2, the peak stress increases by about 72.3%, 147.0%, 195.2%, and 263.9%, respectively, compared to the matrix specimen. The optimum fiber volume content is 1.5% for the PVA-ECC and the KEVLAR-ECC. The KEVLAR-ECC can supply a higher tensile strength than the PVA-ECC, but the PVA-ECC reveals more prominent deformation capacity and energy dissipation performance than the KEVLAR-ECC. Embedding steel grid can improve the tensile peak stress and the energy dissipation of the ECC matrix. For the strain rate of 10−3 s−1, the peak stress of the A0.5S1 and A0.5S2 specimens increases by about 49.1% and 105.7% compared to the A0.5 specimen, and the peak stress of the K0.5S1 and K0.5S2 specimens increases by about 61.5% and 95.8%, respectively, compared to the K0.5 specimen.

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Mechanical Behavior of Natural/Synthetic Weft-Knitted Structures Commonly Used as Reinforcement of Hybrid Composites via Full Factorial Design: Yarn Compositions and Float Stitches

Santos

Dias

et al. 2023

Composites Science and Technology

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A review paper on mechanical properties of flexural and impact test on textile reinforced engineered cementitious composites

Cited by 6 publications

References 73 publications

Analyzing key success factors in public-private partnership BOT projects: an empirical study on financing influences, insights, and analysis in construction management

Analyzing key success factors in public-private partnership BOT projects: an empirical study on financing influences, insights, and analysis in construction management

Experimental Investigation on Dynamic Tensile Behaviors of Engineered Cementitious Composites Reinforced with Steel Grid and Fibers

Mechanical Behavior of Natural/Synthetic Weft-Knitted Structures Commonly Used as Reinforcement of Hybrid Composites via Full Factorial Design: Yarn Compositions and Float Stitches

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